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Vascular plants lacking vessels and comp...

Vascular plants lacking vessels and companion cells are

A

Angiosperm

B

Algae

C

Bryophytes

D

Gymnosperms

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The correct Answer is:
D
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Identify the statements as true(T) or false(F). A. Xylem fibres are the components of xylem in all categories of vascular plants. B. Advanced angiosperm families like Winteraceae & Trochodendraceae do not have vessels. C. Sieve tubes & companion cells are ontogenetically related & are called sister cells. D. The cytoplasm of a mature sieve tube occurs in the form of a thin-living layer along the inner side of cell walls.

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ALLEN-TEST PAPER 3-BIOLOGY
  1. Match the columns I, II and III, and choose the correct combination fr...

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  2. Recognize the figure and find out the correct matching :- (1) a-arc...

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  3. Rhizoids of Funaria are

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  4. Recognise the figure and find out the correct matching :-

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  5. Fern gametophyte bears

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  6. Which one of the following bryophytes has stomata present in the sporo...

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  7. Match the columns I and II, and choose the correct combination from th...

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  8. Match the columns I and II, and choose the correct combination from th...

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  9. Recognise the figure and find out the correct matching:-

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  10. In gymnosperms, the ovule is naked because :-

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  11. Cycas have two cotyledons but not included in angiosperms because of

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  12. In pinus, male and female cones occur on

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  13. Angiosperms have dominated the land flora primarily because of their

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  14. Read the following statements :- (1) In bryophytes true root, stem a...

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  15. Consider the following statements regarding gymnosperms (A) In gymno...

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  16. Recognise the figure and find out the correct matching :-

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  17. A dominant , independent, photosynthetic, thalloid or erect body is re...

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  18. Select the wrong statements:-

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  19. Vascular plants lacking vessels and companion cells are

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  20. Match the colums I and II, and chollse the correct combination from th...

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